Heel clamp



1935- w. H. POINDEXTER I 1,987,126

HEEL CLAMP Filed Jan. 22. 1954 Fzy. 1,

INVENTOR fly/lam J/flz'ndenerz BY' Ma, flaw ATTORNEY.

Patented Jan. 8, 1935 n inite? William ir.'roiiiaextef, .st. Application January '22, 1934, Serial M03707;

is o aims (01..1'24125) invention relatsfto certain new and useful improveme'nts in men 'clar'nps, the peculiarities of which will be hereinafter fully described and claimeda 1 V The main'objects of-my invention are to provide mans"first, for clamping a heelfirrilly to the'sh'oe while the'interposed cement is setting; second, for locking the" clamp in positi'on third, for providing a self coritainedclamp which continues its hold upon the heel independently of any machine, and thus allows of handli ii'g*'the s'hoe and clamp as a-unit in further operations onthe'sh'oe'till it is desired to"remove the-clamp; fourth, for speeding up the finishing operations 15,. on shoes-bythefluse of 'mydevice in-multiplepn multiple "shoes being finished; and other objects hereinaiter*describedyaridclaimed. I

61 t e ilen s m sv n w th li e reference numeralsl indicate corresporrdmg'parts, "Fig i represents'aside view of my device, part- 1y broken away, as applied 'to a heel andshoeindicated by'dashlines;

Fig. 2 ,.a top plan view of Fig.1; and

to shoes,'it'isnece'ssary tocl'amp them ijnpqsition while 'the cementflsets or otheriastening "is ef-f fected; Furthermore, succeeding operations 'on the shoe that require its removal from" the machine, are "delayed by the "machinesnow in use till the heel i sfirmlysecured" n'theshoe.

My heel clamp applied to the shoeby hand f or otherwise, fand' 'locked on t Referring to the drawing, the numeral 1 designates a square upright piece or post, having an L-shaped offset at its lower end forming a rounded end 2 with a hole in which is slidingly mounted a vertical stem 3 having a top 4, preferably recessed or otherwise adapted to support a last contained in a shoe, as indicated by dash lines in Fig. 1. A stiff coil spring 5 mounted on said stem between the offset end 2 and said top, is controlled by a nut 6 threaded on the stem below the d 2",f m1 m enadi t e st nifo PwaIdiendi Of the-s i e A s rin to "m er? e 5 7 1 5 11 Prov ded l ten n i t na eiirqfia ab q ib t: tom 'of thereces's UX iEJS. 1.,and'2,) is formed with intercepting "surface's j nclined to each other to suitably engage heels that are out under 'more or'less. I g mi 7 On the post 1 'isslidi'ngly mounted aho raq usexpanama downward jfrorn'f'thejt lever andle' 1'7 rotatesthe'toothed carn a tlre onger radius of the lower portion quadrant 'c'lojser to the p'o'st he thelhandle is isi nf e wja'rd:to,theiqa pdsi i m l is" cam rotation thusexerts;alifting1move' said tooth from'its'fhoriz ontalposition jshowndn 3 Fl gg' 1, 'anda horizontally pressing" novement' py the quadrant portion, upon an operative lconn'ec tion; W W' I h wiiQ i f ermi flfr v a $t l tj dispose ;p

iron

to grip the opposing teeth 12 on the post. On the 'opposite rear side of said leg isa curved notch 45 20 forming an overhanging shoulder 21, normally engaged by the upper face of said tooth 14 as shown in Fig. 1.

Throwing the lever handle 17 asindicated, lifts the dog and post together relatively to the pres- 5o ser head and brings the lower end 2 of the post nearer the head. This compressive movement exerts a strong spring pressure on the heel, shoe and last thus clamped'between the presser head and the top 4, while the expanding quadrant 5 Bears 6n the curved notch below theshoulder and holds the teeth of post and leg intermeshed.

Any suitable means for locking the lever handle in said thrown position to maintain the clamping action while handling the shoe in succeeding finishing operations may be employed, but my preferred means is as follows.

The clamping lever is extended beyond the cam and has a pointed end 22 which engages a rearwardly, extendingarm 23 of said dog as in Fi 1.1 fIhisarm is curved downward to follow 1 therearward s'wingbf sjaid end, and is preferably.

provided with a slight notch 24 near its rear end, to receive said end 22 when the handle is thrown forward to the dash position; the downward:.re-

an inclined brace 25 having a curved lower end to engage the heel, andan upper end having branchin arms 26 forming a yoke embracing the presserheadl flheends of said arms/are rectangular' andproje'ct inward toward each other, andslide in vertical guide slots 27 in the sides of said head. A thumbscrew 28, mounted in on'ejofjthe'yoke ends, secures the stop in its properly'located adjustment to brace the heel in the desired position, on the spring, base 4.

I "claim: I j

1'.'A heel clamp of, the class described, comprising a post having an voffset lower end, a spring base mounted on'said end to support a shoe, a presser headslidablymounted onsaid post and projecting over said base in front and'having an extensiomrearward of said post,'a lifting cam mounted in said extension, and operative connecting means interposed between said cam and post, substantially as described,

2. A heel clamp of l'the class described, comprising ,a post having ratchet teeth pointed downward'and having itsflower end offsetfand provided with'a spring support for ashoe, an offset presser headslidably mounted on said post over said support 'and h'aving parallel rearward lugs with guides embracingsaid post, a pivoted cam with lever handle mounted between" said lugs and consisting of'alifting tooth and'quadrant,

an operative connection betWeensaidcam and post consisting ofa leg disposedbetween said cam and'ip'ost and having ratchet teeth pointed upward, to meshwith said post teeth and having a notch forming an'overhanging shoulder and 1 bearing surface, and locking ineansfor said cam lever, substantially as described. 3. A heel clamp of the class, described, comprising a, post having ratchet teethon its rear faceand having an offset lower end provided with a support for a shoe, a presser head slidably mounted on said post'over said support and having an extension rearward of the post, a toothed cam having a lever handle and a pointed upper endpivotally mounted in saidextension, an op-,

erative connection between said cam and post consisting of a leg having teeth on its front face to engage the post and a notch on its rear face to engage the toothed cam, said leg having a rearwardly extendingv arm curved downward ad- 'jacent said pointed end to engage and lock said lever after lifting said post, substantially as described.

4. In a heel clamp of the class described, the combination with a shoe support, a post, a slidablehead mounted thereon having. a rearward extension, and a rotary cam pivoted in .said extension having a horizontally disposed tooth and a depending quadrant of increasing radius and having a pointed end and lever handle above and below the cam'respectively, of an operative connection'between said cam and post consisting of a straight leg having gripping means on its front face and having a notch on its rear face forming a shoulder and a bearing surface to engage said a tooth andquadrant respectively, said leg having a rearwardly curved, arm adjacent said pointed endto engage andlocl; the lever handleflin its forward positiomsubstantially as described. 7

5. In a heel clamp of the class described, the herein described clamping lever consisting of a pivoted rotaryv camghaving a horizontally dis-. posed tooth and a depending quadrant, and having a pointed end abovethe cam and a lever handle below the cam, in combination with a shoe support, a pivotal support for said le ver, and cooperativeparts engaged by said tooth and quadrant and pointed .end, substantially l as described 6. Ina heel clamp of the class described, the.

herein described sliding heel ,brace coiisisting of an inclined brace having spreading armsforming a yoke having rectangular opposing inner ends, and 'a thumb screw in one of said ends, in combination with a shoe support, and a, slidable presser head having guiding slots on its opposite faces for said yokeends, substantially as de scribed. y H I V 7. In a heel clamp of the classdescribed, the herein described presser head consistingof a front projecting .arm' with a bracing web and rearward parallel'lugs having guiding shoulders opposite said web, in combination with a shoe support, a "post mounted between said web and shoulders, and means to move saidpost relative-s 1y to said head, substantiallyas described.

8.,In a heel clamp of the class described,'the

hereindescribed support fora shoe on a last,

tion to support a last carrying a shoe, in combi:

nation with a vertically adjustable presser head,

a' post operatively connecting said support and head, and means to vary the position of said head and post relatively to each other.

TWIYLLIAM H. PO INDEX TERQ 

